Garmin Accessory GT15M-TM Xdcr 8pin Mid-CHIRP Transom. The 8-pin transducer features mid-band CHIRP traditional sonar (85-165 kHz) and has a power rating of 600 W. It can be mounted on the transom. Follow the included installation instructions carefully to avoid damaging your boat. Specifications for Garmin GT15M-TM Xdcr 8pin Mid-CHIRP Transom: Manufacturer: Garmin Color: Black Additional Features: Beamwidth 24-13 Deg Weight: 1 lb Features of Garmin GT15M-TM Xdcr 8pin Mid-CHIRP Transom General Frequency:CHIRP Mid-band (85-165 kHz) Power:600 W Beamwidth:24-13 Maximum depth:1900 ft. freshwater Depth/Speed/Temperature:Depth and Temperature Number of pins:8-pin Cable length:20 ft. Supported deadrise/Transom angles:0- 70 degree transom Weight:1.00 lb (0.45 kg) Cable length:30 ft Number of pins on connector: 8 Frequency: Traditional: CHIRP 85-165 kHz Transmit power:Traditional: 600 W Max Depth:Traditional: 1900 ft Beam Width (degrees) LF/HF (-3dB): Traditional: 24/14 Read water temperature:Yes Package Contents: Garmin GT15M-TM Xdcr 8pin Mid-CHIRP Transom GT15M-TMtransducer Transom mount Documentation Garmin 010-12402-10: Accessory GT15M-TM Xdcr 8pin Mid-CHIRP Transom